Mechanical movement.



PATENTED MAR. 6, 1906.

H. BRAMMEB. MECHANICAL MOVEMENT.

UNITED STATES PATENT OFFICE.

MECHANCAL MOVEMENT.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed August 3, 1905. Serial H0- 272.595.

To all whom it may concern.-

Be it known that I, HENRY BRAMMER, a citizen of the United States, and a resident of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a full, clear, and exact description.

My invention relates to mechanical movements in which a continuous rotary motion is converted into a rotary reciprocatory motion, such as are employed in washing-machines, churns, &c.

It is the object of my invention to make this transition from one type of movement to the other as simple as possible and to avoid to a great extent the jerk and noise generally incident at the time of the reversal.

It is also an object of this improvement to construct a movement that is easy to open ate and cannot readily get out of order and one in which the driving-power as imparted to the rotary reci rocal devices is increased.

These ob ects accomplish by the means hereinafter more fully ex lained and as particularly pointed out in t e claims.

In the drawings, Figure 1 is a side elevation of my improved mechanical movement, showing the same applied to the top of washing-machines. Figs.2 and 3 are detail views of the reversing and idle pinions, drawn to a scale nearly full size. Fig. 4 is a similar view showing in detail the continuously-revolvin pinion. Fig. 5 is a front view, on 9. reduce scale, of the transmissiomgear that carries the segmental gear. Fig. 6 is a rear view of the same, showing the segmental gear in detail thereon.

Referring to the drawings, A represents a suitable supporting-plate that is preferably screwed or otherwise secured to the top or cover of the washing-machine. At about its center of length of this supporting) plate there arises at right angles thereto a caringboss a, while at the righthand end of said plate is a similar bearing-boss a, the bearings in both of which are in alinernent with each other. These two bearing-bosses journal the ends of a continuously-revolving driveshaft B, to one end of which a hand or iiy wheel I) is secured, and to the opposite inner end a small pinion b is rigidly secured. This pinion b meshes with a larger gear 0, the axis of which latter is arranged at, preferably, an angle of about forty-five degrees (45) to the axis of the small drive-pinion b and the drive-shaft B. Gear C is journaled in suitable bearings that comprise a gooseneclr lug 0, made integral with and extending above the bearingboss a of the drive-shalt and provided at its end with a suitable angular bearing-stub c, that rigidly secures one end of a stationary shaf t it, upon which the idle gear 0 loosely revolves. This gear C is provided with an elongated boss h,that projects from its 11 per face and has its upper end come in c ose contact with the lower end of the bearingstub 0, thereby holding the gear in roper relation to the pinion l). The gear C is revented from slipping off the lower end of its shaft by any suitable means. The under face of gear C is provided with a se mental rack D, covering less than one-ha f the circumference of said gear, which meshes at points diametrically opposite each other alternately with suitable pinions E and F, which latter intermesh at points diametrically op osite, where they are alternately engaged y the rack D and preferably have their axes arranged at right angles to each other. Pinion E is secured to a rotary reciprocal shaft or to the stirrer-shaft e of the washing-machine, while pinion F acts as an idler or transmission pinion. This idle inion F has its shaft journaled in bearing- )oss f, arising from the adjacent end of the supportin -plate A, and while in the same vertical p ane with the drive-shaft B is preferakllJly in a horizontal plane slightly above said s a t.

In operation the pinion b imparts its motion to the larger gear C, which revolves continuously in one direction, and the segmental rack upon its under side engages first the pinion E of the stirrenshaft and then engages the idle pinion F. This latter pinion F being in engagement with the stirrer-shalt, pinion E acts as an intermediary and transmits the motion of the segmental gear to the stirrershait in opposite direction to that in which said segmental gear turned the same when it engaged the pinion E direct. The segmental ear being 0 less than onchalf the circumerence of the ear C will be just leaving one of the pinions or F when it will engage the other one, thus allowing but a slight period of rest or intermission before commencing the reversal movement. The teeth of the two pinions E and F and the segmental gears I) being of rounded shape, as shown in the drawings, readily engage pinion E without unnecessary noise, thus eliminating a very objectionable feature of many mechanical movements.

lVhat I claim as new is- 1. A mechanical movement comprising a continuously-revolving drive-shaft; a continuonsly-revolvin gear actuated thereby, the axis of which is inclined at an angle to said drive-shaft; a rotary reciprocating shaft at right angles to said drive-shaft; rotary reciprocating meshing pinions, the axes of which are at an angle to each other and one of which is fast on said rotary reciprocating shaft; and a segmental gear carried by said continuously-revolving gear that alternately engages one and then the other of said pinions.

2. A mechanical movement comprising a continuously-revolving segmental rack, two intermeshing mitered gears, alternately engaged by said rack at points diametrlcally opposite their points of enga ement with each other, and a shaft to whic one of said beveled gears is secured.

3. A mechanical movement comprising a continuously-revolving shaft, a pinion thereon, a gear actuated thereby the axis of which is inclined to that of said shaft and which has an endless series of teeth engaged by said pinion and also a segmental rack connected thereto, two intermeshing mitered gears alternately engaged by said rack at points diametrically oppposite their points of enga ement with each other, and a shaft to whicfl one of said beveled. gears is secured.

4. A mechanical movement comprising a continuously-revolving shaft, a pinion thereon, a gear actuated thereby the axis of which is inc ined to that of said shaft and has an endless series of teeth on one side engaged by said pinion and a segmental rack on the opposite side thereof, two intermeshin mitered gears alternately engaged by sai rack at points diametrically opposite their point of enga ement with each other, and a shaft to which one of said beveled gears is secured.

5. A mechanical movement comprising a continuously-revolving shaft, a pinion thereon, a gear actuated thereby the axis of which is inclined to that of said shaft and has an endless series of teeth on one side engaged by said pinion, and a se mental rack having substantially semicircu ar co s on the opposite side thereof, two intermes ing mitered gears which correspond to the cogs of and are alternately engaged by said rack at points diametrically opposite their point of engagement with each other, and a shaft to which one of said beveled gears is secured.

In testimony whereof I have hereunto set my hand this 3d day of March, A. D. 1905.

HENRY BRAMMER.

Witnesses:

FRANK D. THOMASON, E. K. LUNDY. 

